ncr(4) - NetBSD Manual Pages

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NCR(4)               NetBSD/pc532 Kernel Interfaces Manual              NCR(4)


NAME

     ncr - NCR5380/DP8490 low level SCSI interface


SYNOPSIS

     ncr0 at mainbus0 [flags ?]


DESCRIPTION

     The ncr driver provides pc532 specific functions for the machine indepen-
     dent ncr5380 driver provided in the kernel source.  An optional argument
     flags can be used to disable disconnects for all targets (bit 0), to dis-
     able the use of interrupts (bit 1), to force a SCSI BUS RESET at boot
     time (bit 2), to disable SCSI parity checking for certain targets (bits
     8-15) and to disable disconnects for certain targets (bits 16-23).


DIAGNOSTICS

     ncr?: BUS RESET  A BUS RESET was detected on the SCSI bus.

     ncr? spurious interrupt  The controller caused a processor interrupt for
     no reason.

     ncr? ready timeout
     ncr? pdma not_req timeout
     ncr? timeout waiting for final SCI_DSR_DREQ  These three messages indi-
     cate problems during a pseudo-DMA transfer.


SEE ALSO

     cd(4), ch(4), scsi(4), sd(4), se(4), ss(4), st(4), uk(4)


HISTORY

     A driver for the pc532's NCR5380/DP8490 SCSI interface appeared in
     NetBSD 1.0.

NetBSD 2.0.2                    April 21, 1997                    NetBSD 2.0.2